Yeah…I know this is simple, but I need help? How do you change a pose during a pan? If I want to animate lip flap from two people in the FG while the BG is moving, do I need to add a new scene?
If they’re drawn poses select the frame in the character in the timeline and use
the Library window’s drawing substitution slider to change the pose. If I
misunderstood the question, please add more details.
Generally you need a new scene when changing to a different framing/shot.
Sticking to this rule will help avoid overloading the computer’s resources.